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News
Akutan volcano (Aleutian Islands, USA) activity update: small earthquake swarms
Cluster of recent quakes at Akutan Island (USGS)
Sunday, Jan 13, 2013
Small earthquakes have recently occurred beneath Akutan volcano during the past week, Earthquake-Report.com mentioned. The earthquakes continue at a low, but regular rate of occurrence. ... [more]
 

Akutan volcano

Stratovolcano 1303 m / 4,275 ft
Aleutian Islands, USA, 54.13°N / -165.99°W
Current status: dormant (1 out of 5)
Akutan webcams / live data
Akutan volcano books
Last update: 13 Jan 2013 (small earthquake swarms)
Typical eruption style: unspecified
Akutan volcano eruptions: 1992
TimeMag. / DepthDistanceLocation
Wed, 6 Sep
Wed, 6 Sep 07:28 UTCM 0.8 / 6.8 km34 km- 16km E of Unalaska, Alaska
Sat, 2 Sep
Sat, 2 Sep 03:28 UTCM 1.5 / 73.4 km43 km- 24km ESE of Unalaska, Alaska
Tue, 29 Aug
Tue, 29 Aug 04:07 UTCM 1.9 / 71.3 km24 km- 10km ENE of Akutan, Alaska
Sun, 27 Aug
Sun, 27 Aug 16:29 UTCM 1.0 / 7.8 km22 km- 5km NW of Dutch Harbor, Alaska
Wed, 9 Aug
Wed, 9 Aug 03:50 UTCM 0.1 / 9.7 km27 km- 6km N of Dutch Harbor, Alaska
View all recent quakes
Akutan volcano is one of the most active stratovolcanoes of the Aleutian arc. The volcano has a 2-km-wide caldera with an active intracaldera cone.

Background:

An older, largely buried caldera was formed during the late Pleistocene or early Holocene. Two volcanic centers are located on the NW flank. Lava Peak is of Pleistocene age, and a cinder cone lower on the flank produced a lava flow in 1852 that extended the shoreline of the island and forms Lava Point. The 60-365 m deep younger caldera was formed during a major explosive eruption about 1600 years ago and contains at least three lakes. The currently active large cinder cone in the NE part of the caldera has been the source of frequent explosive eruptions with occasional lava effusion that blankets the caldera floor. A lava flow in 1978 traveled through a narrow breach in the north caldera rim almost to the coast. Fumaroles occur at the base of the caldera cinder cone, and hot springs are located NE of the caldera at the head of Hot Springs Bay valley and along the shores of Hot Springs Bay.
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Smithsonian / GVP volcano information


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